ATE522993T1 - ARRANGEMENT FOR DETERMINING A CHARACTERISTIC SHAPE OF AN INPUT SIGNAL - Google Patents

ARRANGEMENT FOR DETERMINING A CHARACTERISTIC SHAPE OF AN INPUT SIGNAL

Info

Publication number
ATE522993T1
ATE522993T1 AT08705116T AT08705116T ATE522993T1 AT E522993 T1 ATE522993 T1 AT E522993T1 AT 08705116 T AT08705116 T AT 08705116T AT 08705116 T AT08705116 T AT 08705116T AT E522993 T1 ATE522993 T1 AT E522993T1
Authority
AT
Austria
Prior art keywords
input signal
determining
characteristic
subsequent samples
preamble
Prior art date
Application number
AT08705116T
Other languages
German (de)
Inventor
Driest Hans Van
Wessel Lubberhuizen
Original Assignee
Greenpeak Technologies B V
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Greenpeak Technologies B V filed Critical Greenpeak Technologies B V
Application granted granted Critical
Publication of ATE522993T1 publication Critical patent/ATE522993T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0028—Correction of carrier offset at passband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0034—Correction of carrier offset using hypothesis testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0093—Intermittant signals
    • H04L2027/0095—Intermittant signals in a preamble or similar structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

A receiver and method for determining a characteristic from an input signal is disclosed. A characteristic is at least one selected from a group comprising preamble detect, frequency offset and timing offset. The input signal comprises an IF frequency fIF and a preamble signal which is a sequence of M similar data symbols. The data symbols have a symbol period SP, and M is an integer greater than or equal to 2. The method comprises: -receiving N subsequent samples of the input signal, the N subsequent samples representing a part of the input signal approximating the symbol period SP, -rotating N subsequent samples to obtain N rotated symbols; -correlating the N rotated symbols with P correlation functions to generate a set of N×P correlation values, P being an integer greater than or equal to 2; and, -selecting a maximum correlation value from the set of N×P correlation values and determining the characteristic. The invention enables to perform an efficient antenna diversity circuit, which can be used for simultaneously timing offset and frequency offset estimation, and preamble detection for both antennae with only one radio unit.
AT08705116T 2008-01-25 2008-01-25 ARRANGEMENT FOR DETERMINING A CHARACTERISTIC SHAPE OF AN INPUT SIGNAL ATE522993T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL2008/050047 WO2009093892A1 (en) 2008-01-25 2008-01-25 Arrangement for determining a characteristic form of an input signal

Publications (1)

Publication Number Publication Date
ATE522993T1 true ATE522993T1 (en) 2011-09-15

Family

ID=40076639

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08705116T ATE522993T1 (en) 2008-01-25 2008-01-25 ARRANGEMENT FOR DETERMINING A CHARACTERISTIC SHAPE OF AN INPUT SIGNAL

Country Status (5)

Country Link
US (1) US8531981B2 (en)
EP (1) EP2235871B1 (en)
JP (1) JP5238824B2 (en)
AT (1) ATE522993T1 (en)
WO (1) WO2009093892A1 (en)

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CN102577289B (en) * 2009-08-13 2014-12-17 卡斯寇达有限公司 Wireless receiver
GB2472774B (en) * 2009-08-13 2011-10-05 Cascoda Ltd Wireless receiver
US8849226B2 (en) * 2009-08-13 2014-09-30 Cascoda Limited Wireless receiver
CN103947123B (en) * 2011-11-16 2016-07-06 飞思卡尔半导体公司 Direct swquence spread spectrum signal receiver and method
US8824606B2 (en) 2012-01-30 2014-09-02 Qualcomm Incorporated Multiple correlators for communication device detection
US9432077B2 (en) * 2012-02-08 2016-08-30 Texas Instruments Incorporated DSSS preamble detection for smart utility networks
KR101844409B1 (en) * 2012-10-23 2018-04-03 삼성전자주식회사 Wireless energy transmission apparatus and method thereof, wireless energy transmission system
US9621202B2 (en) 2013-12-18 2017-04-11 Greenpeak Technologies B.V. Common gate multiple input low noise amplifier
WO2016167641A1 (en) 2015-04-16 2016-10-20 Greenpeak Technologies B.V. Multi-channel receiver
EP3160072B1 (en) * 2015-10-19 2019-10-02 Yamar Electronics Ltd. Transceiver for asynchronous data transmission over a noisy channel
CN108702715B (en) 2015-11-12 2021-01-26 Qorvo国际私人有限公司 Concurrent multiradio receiver
CN105577228B (en) * 2015-12-16 2018-03-09 西安空间无线电技术研究所 A kind of jump extended code phase-tracking method suitable for arrowband interference
CN109076325B (en) * 2016-05-05 2021-12-21 瑞典爱立信有限公司 Detection sequence for D2D communication
WO2018004332A1 (en) 2016-06-28 2018-01-04 Greenpeak Technologies B.V. Robust radio packet acquisition in the presence of continuous wave interference
US10784935B2 (en) * 2016-07-19 2020-09-22 Phazr, Inc. Systems and methods for bandwidth expansion and frequency scaling
US10129014B2 (en) 2017-01-25 2018-11-13 Samsung Electronics Co., Ltd. System and method of performing initial timing synchronization of receivers of modulated signals
US10667102B2 (en) 2017-11-29 2020-05-26 Qorvo Us, Inc. Data detector
CN111543105B (en) * 2017-12-15 2022-04-26 硅实验室公司 Energy-saving system for detecting Bluetooth long-distance packet
KR102457566B1 (en) * 2018-02-22 2022-10-21 한국전자통신연구원 Modem performing modulation or demodulation based on length of burst in a data packet and a method performed by the modem
US11133890B2 (en) 2019-03-07 2021-09-28 Qorvo Us, Inc. Adaptive multi-standard signal classification and synchronization
US11569904B1 (en) * 2021-08-02 2023-01-31 Hubble Network Inc. Differentiating orthogonally modulated signals received from multiple transmitters at one or more antenna arrays
US11283516B1 (en) 2021-08-02 2022-03-22 Hubble Network Inc Multi spoke beamforming for low power wide area satellite and terrestrial networks

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JPH088780A (en) * 1994-06-23 1996-01-12 Toshiba Corp Correlation device and spread spectrum communication system
JP3441301B2 (en) * 1996-07-10 2003-09-02 株式会社東芝 Receiver and synchronization acquisition circuit
US6058150A (en) * 1997-09-30 2000-05-02 Wireless Access, Inc. Method and apparatus for combined timing recovery, frame synchronization and frequency offset correction in a receiver
JP2003046418A (en) * 2001-08-03 2003-02-14 Uniden Corp Diversity receiver
US7203254B2 (en) 2003-03-25 2007-04-10 Motorola, Inc. Method and system for synchronizing in a frequency shift keying receiver
US7839923B2 (en) * 2005-06-22 2010-11-23 Marvell World Trade Ltd. Method and system for equalizing received signals in communications systems
EP2039045B1 (en) * 2006-07-12 2012-12-19 Greenpeak Technologies B.V. Receiver for receiving data symbols having a symbol period

Also Published As

Publication number Publication date
EP2235871B1 (en) 2011-08-31
JP2011510593A (en) 2011-03-31
WO2009093892A1 (en) 2009-07-30
EP2235871A1 (en) 2010-10-06
JP5238824B2 (en) 2013-07-17
US20110051612A1 (en) 2011-03-03
US8531981B2 (en) 2013-09-10

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